MAWA-050A
4. Explanation of Screens
4-10
(4) Envelope
Screen
To make the envelope function effective, turn on “ENVELOPE” in 4. (11) (d) of the Monitor select
screen. In this screen, the current reference waveform/voltage reference waveforms are obtained
for each condition No. and the upper/lower limit value from the reference waveform is set as
waveform data. There are two screens, namely, Envelope waveform check screen for a waveform
check and Envelope setting screen to set the upper/lower limit value for the waveform.
Envelope waveform check screen
* The full welding range is displayed on the Envelope waveform check screen.
(a) Welding result display
At the end of welding, the welding result judgment is displayed.
Normal
GOOD: Lights in green.
Error
NG: Lights in red.
When the monitor value is out of the upper/lower limit judgment range, the
judgment result in NG.
Misfire
LOST: Lights in red.
When the initial current cannot be detected or when a short-circuit
(contact) between a workpiece and the electrode cannot be recognized,
the judgment results in a misfire.
(b) SCH No
The condition number being set is displayed.
(c) Torch
No
The torch No. of the last welding execution is displayed.
(d) CURR
The display (yellow lamp ON) or non-display (white lamp ON) of current waveform
can be selected. [Initial status: Display]
(e) VOLT
The display (red lamp ON) or non-display (white lamp ON) of voltage waveform can
be selected. [Initial status: Not Display]
Current reference waveform
Voltage reference waveform
(g) (h) (i)
(j)
(k)
(l)
Current upper/lower limit waveform
Voltage upper/lower limit waveform
